Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Ka6 draw
3 Kaa8 draw
4 Kab7 draw
5 Kb6 draw
6 Kba8 draw
7 Kbb7 draw
8 Kc8 draw
9 Rg1 draw
10 Rg7 draw
11 Rh8 draw
12 Kc7 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves